B&C A 3 stock, I had to remove factory pad on the butt stock. It was replaced with a Tubb's adjustable unit. the holes were lined up great for the installation, so it was basically a part swap. However recoil and rubbing on the rear bag, has stripped the bottom screw. There's no room to redrill the hole. so I asking if I might just fill the void in the stock with a foam product. Then finish with a 1/2 - 3/4" of epoxy of some kind, let it cure and redrill a ne set of mounting holes. Would set screw type hardware be a better idea? Thanks folks